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The Castelli Fast Feet sock has the development and testing to back up the aerodynamic claims.
Castelli Fast Feet 4 Rosso Corsa Cycling Socks, White
The Castelli Fast Feet sock has the development and testing to back up the aerodynamic claims.
4526030_001-L/XL
€40.00
€32.00
Save 20%
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Rating
FREE SHIPPING IN ITALY FROM 129,99 EUROS*
100% SECURE CHECKOUT
N.1 in Italy in the Bike and E-Bike Shops
There are lots of so-called aero socks out there. But the Castelli Fast Feet 4 Sock has the development and testing to back up the claim. The few socks that have been tested have probably been tested with a static, nonmoving test because it's easier. But a foot is always in motion, so we created a jig that replicates the movement of the lower leg. And we tested it on actual riders to verify the results. This sock can save 2 watts at 50 km/h. The newest version has an updated cuff fit for more comfort and aerodynamic gains.
PRODUCT FEATURES
Castelli's Fast Feet project — for maximum aerodynamics
Foot portion based on Castelli Rosso Corsa Sock for in-shoe comfort
Polyurethane grip strip at top to keep sock in place
Leg portion constructed with engineered grooved Lycra® to help detach airflow
TECHNICAL FEATURES
Insulation: 1/5
Waterproofness: 1/5
Windproofness: 1/5
Breathability: 4/5
Lightness: 4/5
Weight: 287 g
Temperature: 10°C - 38°C / 50°F - 100°F
Fit: Race
Rosso Corsa
Our Rosso Corsa label is only applied to the highest-level products we make. Every thread and fiber, every curve and contour is obsessed about. Rosso Corsa represents a categorical breakthrough in cycling innovation and the meticulous craftsmanship you expect from Castelli’s performance-enhancing apparel.
PRO RIDERS
Garment supplied to the Soudal Quick-Step Team riders.
4526030_001-L/XL
Data sheet
- Code
- CASTS26
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